text: /*
   * Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * FFmpeg is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #ifndef AVCODEC_ARM_DCA_H
  #define AVCODEC_ARM_DCA_H
  
  #include <stdint.h>
  
  #include "config.h"
  #include "libavcodec/mathops.h"
  
  #if HAVE_ARMV6_INLINE && AV_GCC_VERSION_AT_LEAST(4,4) && !CONFIG_THUMB
  
  #define decode_blockcodes decode_blockcodes
  static inline int decode_blockcodes(int code1, int code2, int levels,
                                      int32_t *values)
  {
      int32_t v0, v1, v2, v3, v4, v5;
  
      __asm__ ("smmul   %0,  %6,  %10           \n"
               "smmul   %3,  %7,  %10           \n"
               "smlabb  %6,  %0,  %9,  %6       \n"
               "smlabb  %7,  %3,  %9,  %7       \n"
               "smmul   %1,  %0,  %10           \n"
               "smmul   %4,  %3,  %10           \n"
               "sub     %6,  %6,  %8,  lsr #1   \n"
               "sub     %7,  %7,  %8,  lsr #1   \n"
               "smlabb  %0,  %1,  %9,  %0       \n"
               "smlabb  %3,  %4,  %9,  %3       \n"
               "smmul   %2,  %1,  %10           \n"
               "smmul   %5,  %4,  %10           \n"
               "str     %6,  [%11, #0]          \n"
               "str     %7,  [%11, #16]         \n"
               "sub     %0,  %0,  %8,  lsr #1   \n"
               "sub     %3,  %3,  %8,  lsr #1   \n"
               "smlabb  %1,  %2,  %9,  %1       \n"
               "smlabb  %4,  %5,  %9,  %4       \n"
               "smmul   %6,  %2,  %10           \n"
               "smmul   %7,  %5,  %10           \n"
               "str     %0,  [%11, #4]          \n"
               "str     %3,  [%11, #20]         \n"
               "sub     %1,  %1,  %8,  lsr #1   \n"
               "sub     %4,  %4,  %8,  lsr #1   \n"
               "smlabb  %2,  %6,  %9,  %2       \n"
               "smlabb  %5,  %7,  %9,  %5       \n"
               "str     %1,  [%11, #8]          \n"
               "str     %4,  [%11, #24]         \n"
               "sub     %2,  %2,  %8,  lsr #1   \n"
               "sub     %5,  %5,  %8,  lsr #1   \n"
               "str     %2,  [%11, #12]         \n"
               "str     %5,  [%11, #28]         \n"
               : "=&r"(v0), "=&r"(v1), "=&r"(v2),
                 "=&r"(v3), "=&r"(v4), "=&r"(v5),
                 "+&r"(code1), "+&r"(code2)
               : "r"(levels - 1), "r"(-levels),
                 "r"(ff_inverse[levels]), "r"(values)
               : "memory");
  
      return code1 | code2;
  }
  
  #endif
  
  #if HAVE_NEON_INLINE && HAVE_ASM_MOD_Y
  
  #define int8x8_fmul_int32 int8x8_fmul_int32
  static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)
  {
      __asm__ ("vcvt.f32.s32 %2,  %2,  #4         \n"
               "vld1.8       {d0},     [%1,:64]   \n"
               "vmovl.s8     q0,  d0              \n"
               "vmovl.s16    q1,  d1              \n"
               "vmovl.s16    q0,  d0              \n"
               "vcvt.f32.s32 q0,  q0              \n"
               "vcvt.f32.s32 q1,  q1              \n"
               "vmul.f32     q0,  q0,  %y2        \n"
               "vmul.f32     q1,  q1,  %y2        \n"
               "vst1.32      {q0-q1},  [%m0,:128] \n"
               : "=Um"(*(float (*)[8])dst)
               : "r"(src), "x"(scale)
               : "d0", "d1", "d2", "d3");
  }
  
  #endif
  
  #endif /* AVCODEC_ARM_DCA_H */
  